The paper presents an all-optical system for the detection of bacterial contamination in flowing water that combines the readings from a multi-functional fiber Surface Plasmon Resonance (SPR) sensor with fluorescence measurements. The preliminary application to cases of water contaminated with Escherichia coli is discussed.
The paper discusses all-fiber applicators for the percutaneous laser ablation of tumors, which integrate very dense fiber Bragg grating arrays to add quasi-distributed sensing capabilities. First an assessment of the temperature map distribution reconstruction from the measurements is presented and the impact of some non-idealities is studied; then the developed probes are used to analyze different laser operating conditions, comparing the measurements in ex-vivo porcine livers with modeling expectations.
The paper presents the realization of a prototype of a compact, cost-effective, and real-time photonic system for the early detection of quality variations in flowing water and for its sanitization. The detection is based on a multi-functional fiber Surface Plasmon Resonance (SPR) sensor, while the disinfection is obtained with a combination of short-wavelength light in the UV-blue region.
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